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Finding the Fourth Proportional to 8,620.57, 12,933.42 and 2,777.23

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Solution

The fourth proportional to 8,620.57, 12,933.42 and 2,777.23 is: 4,166.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.57 : 12,933.42 = 2,777.23 : x
  2. Step 2: Convert to fraction form
    8,620.57/12,933.42 = 2,777.23/x
  3. Step 3: Cross multiply
    8,620.57x = 12,933.42 × 2,777.23
  4. Step 4: Simplify right side
    8,620.57x = 35,919,082.03
  5. Step 5: Solve for x
    x = 35,919,082.03/8,620.57
  6. Step 6: Final answer
    x = 4,166.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.